Hand pump



FIG. 1 is a view in perspective of a hand pump.

FIG. 2 is a side plan view of the hand pump of FIG. 1.

FIG. 3 is a top view of the hand pump of FIG. 1.

FIG. 4 is a bottom plan view of the hand pump of FIG. 1.

FIG. 5 is an end view of the hand pump of FIG. 1; and,

FIG. 6 is an end view of the hand pump of FIG. 1. 

The ornamental design for a hand pump, as shown and described. 